Add 16/12 and 21/54, Solve 1 4/12 + 21/54 as a fraction

Add 16/12 and 21/54

1^st number: 1 4/12, 2^nd number: 21/54

16/12 + 21/54 is 31/18.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
16/12 = 16 × 9/12 × 9 = 144/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108
Add the two like fractions:
144/108 + 42/108 = 144 + 42/108 = 186/108
186/108 simplified gives 31/18
So, 16/12 + 21/54 = 31/18
In mixed form: 113/18

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